/Engine/Source/Runtime/Engine/Classes/Animation/AnimSequence.h
Retarget a single bone transform, to apply right after extraction.
void RetargetBoneTransform ( FTransform & BoneTransform, const int32 SkeletonBoneIndex, const [FCompactPoseBoneIndex](API\Runtime\AnimationCore\FCompactPoseBoneIndex) & BoneIndex, const [FBoneContainer](API\Runtime\Engine\FBoneContainer) & RequiredBones, const bool bIsBakedAdditive ) const